Saw-set



{No Model.)

J. PRBDERICKSON. SAW SET.

time o TATES JORGEN FREDERioKsomoF Gimme, MICHIGAN.

SAW-SET.

SPECIFICATION forming part of Letters Patent No. 606,335, dated June 28,1898.

Application filed December 6,1897. Serial No. 660,871. (No model.)

To all whom it may concern:

Be it known that I, J ORGEN FREDERICKSON,

a citizen of the United States, residing at Gaylord, in the county of()tsego and State of Michigan, have invented certain new and usefulImprovements in Saw-Sets; and I do declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention relates to certain novel improvements in that class ofsaw-sets of which Letters Patent dated November23, 1897, No. 594,000,may be taken as a type; and the object of the present invention istoincrease the efficiency and utility of the tool without materiallyincreasing the cost of the same.

To this end the invention consists in the construction, combination, andarrangement of the device, as will be hereinafter more fully described,and particularly pointed out in the claim.

The accompanying drawings show my invention in the best form now knownto me; but many changes in the details might be made within the skill ofa good mechanic without departing from the spirit of my invention, asset iforth in the claim at the end of this specification. I

The same reference characters in the several figures of the drawingsindicate the same parts of the invention.

Figure 1 is a perspective View of a saw-set embodying my invention. Fig.2 is a longitudinal section. Fig 3 is a longitudinal section through thetooth-setting head of the tool. Fig. 4 is a side elevation.

The body 1 of the tool is preferably formed v of malleable iron orsteel, and it is formed at one end with a cylindrical head 2, which isprovided with a radial slot 3, which terminates in an alined threadedorifice 4. A thumb-screw 5 is adj ustably secured in said orifice, andthe threaded end of said thumbscrew is longitudinally cut away to form aplain face 6 and shoulder 6, against which the points of the teeth ofthe saw are adapted to abut when the tool is being used as a set, and asthis thumb-screw is adjustable the position of the gaging-shoulder 6 maybe varied with reference to the too 7 of the slot 3, so as to adapt itto teeth of different lengths. It will the teeth isassured.

be noted that the top of the head of this thumbscrew is flat, so that itcan be conveniently used as a swage from time to time during the processof setting the saw.

A set-screw 8 is adj ustably secured in the head 2 at a right angle tothe body of I the thu mb-screw 5, so that after it has been adj usted toconform to the saw-teeth the plain face 6 of the screw 5 will be fixedparallel with the walls of the slot 3. A gage-screw 9 is mounteddiagonally in the same end of the tool and in the same plane with thethumb screw 5 and at an acute angle thereto, and its projecting end,coming against the blade of the saw, acts as a gage to secure uniformityof set to the teeth.

The outer end of the screw 5 terminates in a hammer-head 10, which isuseful in giving the finishing touch to a particular tooth not otherwiseproperly set. On one edge of the body is formed the integral flanges 1212, which serve to support the tool upon the points of the cutting-teethwhile the slotted plate 13 is being used to gage the rakerteeth of thesaw, and this plate 13 is held in place by the set-screw. Thecutting-teeth of the saw having been filed down to the proper length inorder to fit the raker-teeth, the tool will now be placed upon the sawso that the flanges 12 12 will rest upon the points of thecutting-teeth, so that the points of the intermediate raker-teeth willproject through the slot 15 in the plate 13, and by applying a file tothe projecting points of the rakerteeth they may be brought down to thelevel of the face of the plate 13, and when all of the raker-teeth havebeen treated in this manner they will have the proper relative length tothe cutting-teeth; 1 1.

One side of the tool is formed with parallel ribs 16 16, intersected bya slot 17, adapted to receive a file-blade 18, which is removablysecured therein by means of the eccentric or cam levers 19 19, so as tohold the file at a right'angle to the ribs 16 16, and as the ribs restagainst the side of the blade the face of the file is at a right angleto the plain of the blade and the proper shape of the ends of 20, 20,and 20 denotelateral integral studs projecting from one side of thetoolyand 21 represents a fourth stud, which is adjustably secured inplace by the set-screw 22, and these studs constitute the setting-gageto prove the teeth.

Having thus fully described my invention, What I claim as new anduseful, and desire to secure by Letters Patent of the United States, is-

A device for setting, gaging and jointing saw-teeth, comprising a bodyportion formed on one side with the fixed parallel ribs 16 16intersected by the slot 17 adapted to receive a file-blade, and thecam-levers 19 19 pivoted to the same side of said body portion near eachof said ribs, so as to lock said file-blade in position in said ribs,substantially as shown 15 and described.

In testimony whereof I hereunto afiiX my signature in presence of twoWitnesses.

JORGEN FREDERICKSON.

Vitnesses:

CHAS. A. LYON, W. L. TOWNSEND.

